When a fertilized egg implants outside the uterus, usually in the fallopian tube, it is known as an ectopic pregnancy. Since it cannot be sustained, it is life-threatening and needs to be treated right away. Severe pain, bleeding, and dizziness are among the symptoms. Hormone tests and ultrasounds are used in the diagnosis process. Depending on the severity, treatment options include surgery or injections of methotrexate.